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WORKING GROUP I 1Jj CROPS :, /' GROUPE DE Union Internationale des cie11ccs Bwlogiques ORGANISATION INTERNATIONALE DE LUITE BIOLOGIQUE ET INTEGREE CONTRE LES ANIMAUX ET LES PLANTES NUISIBLES SECTJON IU3GIO ALE OUJBST PALBAJlCl'lQUlB �:;mf(:;:,m��==filt·'··'j�J�f:tfül�ft;tt:f#:it::·:�jhffl&t?$.� fu �-�-•fa ffüi ===t�:::=:::::::::::�.:::::::::::::�:filf:::::-i.�#f:fii. • t».:st '�' ISBN 92 9067 03& X �,:-··11 WORKING GROUP i�1Jj • INTEGRATED CONTROL IN CEREAL 1 CROPS :, /' GROUPE DE TRAVAL ., •LUTTE INTEGREE EN CEREALES PROCEEDINGS OF THE MEETING AT QOTTINQEN ( F . R • Q . ) 21 22 MARCH 1990 EDITED BY C. A. DEDRYVER EDITE PAR IOBC / WPRS BlA.LETIN 1991 /XIV/ 4 BULLETIN OILB / SROP InknUdional Union of Biological Scienus INTERNATIONAL ORGANIZATION FOR BIOLOGICAL AND INTEGRATED CONTROL OF NOXIOUS ANIMALS AND PLANTS WEST PALAJIWitCTIC UOIONAL SECTION 1 IOBC OILB WPRS SROP WORKING GROUP • INTEGRATED CONTROL IN CEREAL CROPS • PROCEEDINQS OF THE MEETING AT GOTTINGEN ( F . R. G.) FROM 21 - 22 MARCH 1990 GROUPE DE TRAVAIL • LUTTE INTEGREE EN CEREALES COMPTE - RENDU DE LA REUNION A GOTTINGEN ( R . F. A. ) DE 21 - 22 MARS 1990 EDITED BV C. A. DEDRYVER EDITE PAR IOBC / WPRS BULLETIN f!J!Jf /XIV/ 4 BULLETIN OILB / SROP Union Internationale des Sciences B1otogiques ORGANISATION INTERNATIONALE DE LUTTE BIOLOGIQUE. ET INTEGREE CONTRE LES ANIMAUX ET LES PLANTES NUISIBLES SECTION REGIONALE QUEST PALEARCTIQUE International Union of B1ological Sciences INTERNATIONAL ORGANIZATION FOR BIOLOGICAL AND INTEGRATED CONTROL OF NOXIOUS ANIMALS AND PLANTS WEST PALAEARCTIC REGIONAL SECTION IS YOUR. ORGANISATION ALREADY MEMBER. OF IOBC/VPRSf If you benefit from the activities of IOBC/IJPRS, then please convince your institute or organisation to become a ME.MBER!! As a non-profit organisation for. the promotion of biological and integrated control in Europe, IOBC/WPRS urgently needs the contribution of its KEMBERS in order to be able to support and stimulate the 1mportant activities of the Yorking and Study Groups. If you are interested, then please coaplete the following form and send it to: dr. S.H. POITOUT, Secretary General IOBC/IJPRS INRA Station de Zoologie et d'Apidologie Domaine Saint Paul, B.P. 91 84143 Kontfavet Cedex, France Telephone +3390316170 Telefax +3390316298 1 would like to receive information about: 0 Institutional Membership (for uon-profit organisations) 0 Supporting Membership (for example for commercial organisations) Name: .................................... Address: ................................. Pour la promotion des syst�mes de protection int�r�e For the promotion of integrated protection systems Union Internationale des Sc,ences 81olog1ques ORGANISATION INTERNATIONALE DE LUTTE BIOLOGIQUE ET INTEGREE CONTRE LES ANIMAUX ET LES PLANTES NUISIBLES SECTION REGIONALE OUEST PALEARCTIQUE International Union of S,ological Sciences ()ilt INTERNATIONAL ORGANIZATION FOR BIOLOGICAL AND INTEGRATED �yör CONTROL OF NOXIOUS ANIMALS ANO PLANTS WEST PALAEARCTIC REGIONAL SECTION VOTRE ORGANISATION !ST ELLE DEJA MEMBRE DE L'OILB/SROP? Si vous beneficiez des activites de l'OILB/SROP, alors attachez vous s'il vous plait a convaincre votre Institut ou Organisation d'adherer a l'OILB/SROP, devenant ainsi un de ses KEMBRES!! L'OILB/SROP est une Organisation a buts non lucratifs pour la promotion de la lutte biologique et integree, elle a donc un besoin imperieux de la contribution de ses membres, afin de pouvoir soutenir et stimuler les importantes activites de ses Groupes de travail et d'etudes. Si vous etes interesse, complttaz s'il vous plait le formulaire suivant et envoyez le au: dr. S.H. POITOUT, Secretaire general de l'OILB/SROP INRA n-ation de recherches de Zoologie et d' Apidologie Domaine Saint Paul, B.P. 91 84143 Kontfavet Cedex, France Telephone +3390316170 Telefax +3390316298 Je souhaiterai recevoir une information concernant: 0 Kembre institutionnel (pour les instituts a buts non lucratifs) 0 Kembre bienfaiteur (par exemple pour les Organismes commerciawt) Nom: ............................ ·· ·. · · · · · · · · · · Adresse: .................................... Pour la promotion des systemes de pro.tection int6gr�e For the promotion of integrated protection systems i AVANTPROPOS La reunion bisannuelle de notre groupe de travail a ete organisee par notre collegue Michael Poehling et s'est tenue les 21 et 22 mars 1990 a l'Institut de pathologie vegetale et de protection des plantes de l'Universite de Göttingen (RFA). Elle nous a donne l'occasion de celebrer avant la lettre la reunification de l'Allemagne, puisque 5 collegues de la section de protection des plantes de l'Universite de Martin Luther de Halle (a l'epoque en RDA) ont activement participe a cette reunion et ont demande a faire partie du groupe. La reunion a donne lieu a 17 communications portant sur la biologie et la dynamique des populations de pucerons des cereales et les methodes de prevision des pullulations, l'epidemiologie de la jaunisse nanisante de l'orge et la prevision des epidemies, l'action des hymenopteres parasitoides et hyperparasitoides et le röle des predateurs polyphages, particulierement en relation avec les traitements insecticides. Enfin une communication traite du puceron Diuraphis noxia, nouveau ravageur introduit en Amerique du Nord, et de l'inventaire de ses ennemis naturels dans ses zones d'habitat traditionnelles et une autre resume les recherches entreprises en France sur la Pyrale du mai"s. Au cours de la discussion qui a suivi, trois sujets de collaboration ont ete proposes pour les prochaines annees Le premier projet. propose par Th. Basedow consiste a renforcer les liens entre les quelques collegues specialises dans l'etude des predateurs polyphages autour d'une experimentation multisite utilisant des methodes standard. Le second projet a ete propose par M. Poehling et C.A. Dedryver, autour de l'epidemiologie de la jaunisse nanisante de l'orge ; il consiste a comparer la biologie des vecteurs (particulierement les modes d'hivernation) et les differentes souches de virus presentes, selon un arc de cercle allant du Nord de l'Espagne (Lerida) au Nord de l'Allemagne (Göttingen) en passant par la France (Rennes) et l'Ouest de l'Allemagne (Stuttgart). Les conclusions de ce projet seront debattues au cours de la prochaine reunion ou des virologues seront invites. Le troisieme projet a ete propose par C.A. Dedryver, il consiste a creer une banque de donnees sur les fluctuations de populations de pucerons des cereales, au depart dans trois pays, France, Allemagne et Grande Bretagne. Elle serait constituee de resultats ii de comptages et d'observations et serait a la disposition de tous avec l'accord des parties interessees. Cette banque de donnees,qui dans certains cas rassemblerait plus de 10 annees d'observations, permettrait des comparaisons inter-regionales du plus grand interet. L'ensemble des participants a, pour terminer, adresse ses remerciements chaleureux a M. Poehling pour l'excellente organisation materielle et scientifique de la reunion. L'animateur C.A. DEDRYVER iii FOREWORD The bisannual meeting of the working group was organised by our colleague st Michael Poehling and was held on 21 and 22nd March 1990 at Göttingen (FRG), Institut of Plant pathology and Plant protection of the University. This meeting gave us the opportunity to celebrate in advance the reunification of Germany, because five colleagues of the plant protection service of the University Martin Luther of Halle (previously in GOR) attended it and asked to belang to our group. Twenty six participants belonging to 7 countries attended the meeting, and 17 papers were presented. The main topics were . biology, population dynamics of cereal aphids and forecasting methods . epidemiology of BYDV and epidemics forecast . role of hymenopterous parasitoids an d hyperparasitoids . role of epigeal predators, specially in relatioP.with insecticides sprays. Another communication concemed Diuraphis noxia, a newly introduced pest in America and the inventory of its natural enemies in the old world and finally, a last paper summarised the researches in France on the european com barer. From the discussion, 3 new projects were planned for the following years . The first project was proposed by Th. Basedow and consisted to strenghten links between colleagues working on epigeal predators with a common experiment using standard methods . The second project was proposed by M. Poehling and C.A. Dedryver on BYDV epidemiology. Its aim was a comparison of vectors biology (specially overwintering) and virus strains on different locations : North of Spain (Lerida), France (Rennes), Western and Northern Gerrnany (Stuttgart and Göttingen). Virologists will be invited at the next meeting. Tue third project was proposed by C.A. Dedryver and consisted to create a data bank on cereal aphids (First in France, Germany and U.K.), using the counting data collected in the 3 countries. This data bank will concern in some cases more than 10 years of observations and will a!low interesting interregional comparisons. iv The advances in these projects will be discussed at the next meeting. Finally the whole participants thanked M. Poehling and his staff for the excellent material and scientific organisation of the meeting. The convenor C.A. DEDRYVER V LISTE DES PARTICIPANTS/LIST OFTHE PARTICIPANTS Thies BASEDOW Institut für Phytopathologie und angewandte Zoologie, Universität Gießen, Ludwigstr. 23, 6300 Gie�en, BRD. Christian BORGEMEISTER Institut für Pflanzenpathologie und Pflanzenschutz, Universität Göttingen, Grisebachstr. 6, 3400 Göttingen,BRD. PetraCHRISTIANSEN-WENIGER
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